Support ale_sh_shellcheck_dialect to set dialect

As discussed in w0rp/ale#1051, there are cases where it would be useful
to be able to specify the dialect explicitly.  This commit allows users
to do so using the ale_sh_shellcheck_dialect variable.

Fixes: w0rp/ale#1051

Signed-off-by: Kevin Locke <kevin@kevinlocke.name>

1 files changed, 12 insertions, 0 deletions

diff --git a/test/command_callback/test_shellcheck_command_callback.vader b/test/command_callback/test_shellcheck_command_callback.vader
index 22a9ccb5..c5360b7d 100644
--- a/test/command_callback/test_shellcheck_command_callback.vader
+++ b/test/command_callback/test_shellcheck_command_callback.vader
@@ -33,6 +33,18 @@ Execute(The shellcheck command should include the dialect):
   AssertLinter 'shellcheck',
   \ b:prefix . ale#Escape('shellcheck') . ' -s bash' . b:suffix
 
+Execute(The shellcheck command should use ale_sh_shellcheck_dialect):
+  let b:ale_sh_shellcheck_dialect = 'ksh93'
+
+  AssertLinter 'shellcheck',
+  \ b:prefix . ale#Escape('shellcheck') . ' -s ksh93' . b:suffix
+
+Execute(The shellcheck command should allow unspecified dialect):
+  let b:ale_sh_shellcheck_dialect = ''
+
+  AssertLinter 'shellcheck',
+  \ b:prefix . ale#Escape('shellcheck') . b:suffix
+
 Execute(The shellcheck command should include the dialect before options and exclusions):
   let b:is_bash = 1
   let b:ale_sh_shellcheck_options = '--foobar'